128325823 has 2 divisors, whose sum is σ = 128325824. Its totient is φ = 128325822.

The previous prime is 128325797. The next prime is 128325871. The reversal of 128325823 is 328523821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128325823 - 2⁹ = 128325311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128323823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64162911 + 64162912.

It is an arithmetic number, because the mean of its divisors is an integer number (64162912).

Almost surely, 2^128325823 is an apocalyptic number.

128325823 is a deficient number, since it is larger than the sum of its proper divisors (1).

128325823 is an equidigital number, since it uses as much as digits as its factorization.

128325823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 34.

The square root of 128325823 is about 11328.0988254870. The cubic root of 128325823 is about 504.3956735311.

The spelling of 128325823 in words is "one hundred twenty-eight million, three hundred twenty-five thousand, eight hundred twenty-three".